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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. SIVA YOGANATHAN M.D.
NPI 1063465664
Psychiatry & Neurology - Psychiatry in Napa, CA

Active since May 18, 2006PECOS Enrolled
2100 NAPA VALLEJO HWY, NAPA, CA 94558(707) 253-5000(707) 253-5513 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Siva Yoganathan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SIVA YOGANATHAN M.D. (NPI 1063465664) is an individual psychiatry provider in Napa, California, licensed in California (A26466) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063465664
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. SIVA YOGANATHANCredential: M.D.
Location Address2100 NAPA VALLEJO HWYNapa, CA 94558-6234
Mailing Address1600 9th St, Room 205 Mailstop 2-3Sacramento, CA 95814-6414 · (916) 654-2431 · Fax (916) 654-3186
Phone(707) 253-5000
Fax(707) 253-5513
Sole ProprietorNo
Enumeration DateMay 18, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1063465664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A26466
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
2100 NAPA VALLEJO HWY, Napa, CA 94558
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Siva Yoganathan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$192.16 typical visit price
range $65.08 – $192.16
Typical copayment $48.04 (range $16.27 – $48.04)
Most-billed visit code 99205
Established Patient
$80.32 typical visit price
range $21.86 – $157.83
Typical copayment $20.08 (range $5.46 – $39.45)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NAPA VALLEY PROJECT NINETY INC.
Substance Abuse Rehabilitation Facility
2100 NAPA VALLEJO HWY, M-1 M-2
NAPA, CA 94558
Napa County (707) 603-1112
DR. STEVEN JIN CHOI PH.D.
Psychologist (Clinical)
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 254-2712
MR. BENJAMIN JOSEPH LEVIN PSY.D.
Psychologist
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 253-5631
DUSTIN REAGIN PSYD
Psychologist
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (415) 476-3902
BRITTANY ALYCE CUNNINGHAM PH.D.
Psychologist (Clinical)
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 253-5654
ALI AKHAVAN MD
Internal Medicine
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 253-5000
MS. ALICE L SUTTON LCSW
Social Worker (Clinical)
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 253-5120
DR. KRISTOPHER M THOMAS PH.D.
Psychologist
2100 NAPA VALLEJO HWY
NAPA, CA 94558
Napa County (707) 253-5460

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Siva Yoganathan's NPI number?

The NPI number for Siva Yoganathan is 1063465664. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Siva Yoganathan located?

Siva Yoganathan practices at 2100 Napa Vallejo Hwy, Napa, CA 94558. The listed phone number is (707) 253-5000.

What is Siva Yoganathan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Siva Yoganathan enrolled in Medicare?

Yes. Siva Yoganathan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Siva Yoganathan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.